Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in 3.42 Ratio Face Hobbed Ring & Pinion Set

The Revolution Gear & Axle GM 10-Bolt 8.5-inch/8.6-inch 3.42 Ratio Face Hobbed Ring and Pinion Set is designed for differential rebuilds and gear upgrades requiring dependable fitment and consistent performance. Part number rgaGM10-342DC is manufactured for compatible GM 10-bolt 8.5-inch and 8.6-inch rear differentials, providing a 3.42:1 final drive ratio for balanced acceleration, cruising performance, and everyday drivability.
The face-hobbed manufacturing process supports accurate tooth geometry and smooth gear engagement when the ring and pinion are properly installed and set up. This design helps promote quiet operation, reliable power transfer, and long-term durability in a properly maintained differential. The matched ring and pinion components are supplied as a set to simplify differential service and help ensure compatibility between the gear surfaces.
This Revolution Gear & Axle set is intended for automotive applications using the specified GM 10-bolt differential platform. Professional installation is recommended, including careful inspection of the differential housing, bearings, seals, carrier setup, backlash, tooth contact pattern, and gear lubricant requirements. Correct installation and break-in procedures are essential for achieving the best performance and service life from any replacement ring and pinion assembly.
Brand: Revolution Gear & Axle. Part Number: rgaGM10-342DC. Application: GM 10-bolt 8.5-inch/8.6-inch differential. Gear Ratio: 3.42:1. Design: Face hobbed ring and pinion set. Product Type: Automotive differential gear set.

Features:

• Compatible with GM 10-bolt 8.5-inch and 8.6-inch differential applications

• 3.42:1 gear ratio for balanced acceleration and highway cruising

• Face-hobbed ring and pinion design supports smooth, consistent gear engagement

• Matched ring and pinion set for differential rebuilds and gear replacement

• Designed for reliable power transfer when professionally installed and properly set up

• Brand: Revolution Gear & Axle

• Part Number: rgaGM10-342DC